Method for selectively retrieving a plurality of well packers

Details Method for selectively retrieving a plurality of well packers Method for selectively retrieving a plurality of well packers

1975-07-31

1976-04-20

Novosad, Stephen J.

Wells

Valves, closures or changeable restrictors

166181, E21B 3312, E21B 13124

Patent

active

039512118

ABSTRACT:
A method of operating a plurality of well packers in a borehole involves selectively retrieving one or more of the well packers on a single trip of the production string or a work string out of the borehole.

REFERENCES:
patent: 1797177 (1931-03-01), Nixon et al.
patent: 2537066 (1951-01-01), Lewis
patent: 2618340 (1952-11-01), Lynd
patent: 2806532 (1957-09-01), Baker et al.
patent: 3100533 (1963-08-01), Fredd
patent: 3818987 (1974-06-01), Ellis

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